Musnad Ahmad 25:1565

Ya'la narrated to us, Hajjaj al-Sawwaf narrated to us, from Yahya, from Ikrimah, who said: I was sitting with Zayd ibn Ali in Medina, when an old man passed by who was called Shurahbil Abu Sa'd. He said: "O Abu Sa'd, where have you come from?" He replied: "From the Commander of the Faithful. I narrated a hadith to him, and he said: 'For this hadith to be true is more beloved to me than having red camels.'" He said: "Narrate it to the people." He said: "I heard Ibn Abbas saying: The Messenger of Allah (peace and blessings of Allah be upon him) said: 'There is no Muslim who has two daughters reach [adulthood] for him, and he treats them well as long as they accompany him—or he accompanies them—except that they will cause him to enter Paradise.'"